When he grew-up to manhood and became forty years old, he then said, "Lord, inspire me to give You thanks for the bounties you have granted to me and my parents, and to act righteously to please You.
(1) Berdasarkan ayat ini, dapat diketahui bahwa masa mengandung setidaknya berlangsung selama enam bulan. Disebutkan bahwa masa mengandung dan masa menyusui (sampai dengan masa sapih) berlangsung selama 30 bulan.